EP1861154B1 - Dispositif medical comportant une fonction d'aspiration de l'hypopharynx - Google Patents
Dispositif medical comportant une fonction d'aspiration de l'hypopharynx Download PDFInfo
- Publication number
- EP1861154B1 EP1861154B1 EP06739425.4A EP06739425A EP1861154B1 EP 1861154 B1 EP1861154 B1 EP 1861154B1 EP 06739425 A EP06739425 A EP 06739425A EP 1861154 B1 EP1861154 B1 EP 1861154B1
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- EP
- European Patent Office
- Prior art keywords
- suction
- opening
- tube
- medical apparatus
- patient
- Prior art date
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- 210000003026 hypopharynx Anatomy 0.000 claims description 26
- 210000002784 stomach Anatomy 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000028327 secretion Effects 0.000 claims description 3
- 206010003504 Aspiration Diseases 0.000 description 10
- 230000002496 gastric effect Effects 0.000 description 6
- 210000003800 pharynx Anatomy 0.000 description 5
- 210000003736 gastrointestinal content Anatomy 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 201000011510 cancer Diseases 0.000 description 3
- 206010012601 diabetes mellitus Diseases 0.000 description 3
- 208000021302 gastroesophageal reflux disease Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000035935 pregnancy Effects 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 206010047700 Vomiting Diseases 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000002409 epiglottis Anatomy 0.000 description 2
- 208000006678 Abdominal Neoplasms Diseases 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010021518 Impaired gastric emptying Diseases 0.000 description 1
- 206010028817 Nausea and vomiting symptoms Diseases 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 208000001288 gastroparesis Diseases 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 208000003243 intestinal obstruction Diseases 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000002483 medication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 210000003079 salivary gland Anatomy 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
- A61M16/0409—Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
- A61M16/0415—Special features for tracheal tubes not otherwise provided for with access means to the stomach
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0475—Tracheal tubes having openings in the tube
- A61M16/0477—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0486—Multi-lumen tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0003—Nasal or oral feeding-tubes, e.g. tube entering body through nose or mouth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0026—Parts, details or accessories for feeding-tubes
- A61J15/003—Means for fixing the tube inside the body, e.g. balloons, retaining means
- A61J15/0046—Expandable retainers inside body lumens of the enteral tract, e.g. fixing by radially contacting a lumen wall
- A61J15/0049—Inflatable Balloons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0026—Parts, details or accessories for feeding-tubes
- A61J15/0073—Multi-lumen tubes
Definitions
- the present invention generally relates to nasogastric tubes and laryngeal masks.
- Nasogastric tubes and related devices are described in U.S. Patent Nos. 5,643,230 , 5,417,664 , 5,011,474 , 5,000,175 , 4,821,715 , 4,787,894 , 4,735,607 , 4,699,138 , 4,508,533 , and 4,214,593 .
- Nasogastric tubes and related devices are also described in the following patents and published patent applications: EP 0500778 , JP 10179677 , WO 9716154 , WO 9631248 , and WO 8000538 .
- Nasogastric tubes are used to aspirate food contents from the stomach or to feed patients who are unable to safely feed themselves.
- Nasogastric tubes are commonly used in the operating room, intensive care units, home care, and in hospice settings.
- Prior art nasogastric tubes are frequently used to aspirate stomach contents.
- aspiration of the stomach contents results in microapirations which can cause nosocomial infections.
- Laryngeal masks are used to provide ventilation and are commonly used in the operating room and in situations where it is difficult to insert an endotracheal tube.
- Prior art laryngeal masks and related devices are described in U.S. Patent Nos. 4,351,328 , 4,509,514 , 4, 995, 388 , 5,241,956 , 5,303,697 , 5,355,879 , 5,632,271 , 5,878,745 , 6,631,720 and 6,895,966 and in published international patent application no. WO 1994/02191 .
- a disadvantage of prior art laryngeal masks is that there is no protection from aspiration into the lungs of gastric contents or saliva regurgitated into the hypopharynx and pharynx.
- US 3,730,179 A discloses a combination of a resuscitating, aspirating and gastric draining apparatus of unitary construction including a tubular body adapted for insertion into the mouth.
- Nasal pharyngeal catheter tubes extend transversally through the tubular body for insertion into the nostrils for gastric draining.
- WO01/24860 A2 discloses a laryngeal mask with a large-bore gastric drainage
- EP 0 389 272 A2 discloses a laryngeal mask having a drainage tube.
- WO96/04950 A1 discloses a suction stylet for use with an endotracheal tube.
- US 4,676,778 A discloses a long intestinal catheter insertable via the nasogastric route.
- the present invention is directed to, in one aspect, a medical apparatus as defined in claim 1 and dependent claims.
- the present invention is related to a medical apparatus comprising a laryngeal mask and a suction tube attached to the laryngeal mask as defined in claim 6 and dependent claims.
- FIG. 1 there is shown a diagrammatic view of one example of a medical apparatus.
- This medical apparatus generally indicated by reference numeral 10, comprises tube structure 12.
- Tube structure 12 comprises nasogastric tube section 14 and oropharyngeal tube section 16.
- the interior of nasogastric tube section 14 is known as the lumen.
- the interior of oropharyngeal tube section 16 is known as the lumen.
- Nasogastric tube section 14 and oropharyngeal tube section 16 are joined together at tube section 18 so as to form a generally "Y" shaped configuration.
- Tube section 18 is configured to be connected to tube section 20.
- Tube section 20 is configured to be connected to an external apparatus 21 (shown in phantom).
- such external apparatus 21 can be a suction apparatus for creating suction within tube structure 12.
- the aforesaid external apparatus can be a food source for feeding a patient that is unable to feed himself or herself.
- nasogastric tube section 14 has a sufficient length that allows it to be inserted through the patient's nose 30, through the hypopharnyx region 40 (which is just below epiglottis 42) and into the patient's stomach 50.
- Nasogastric tube section 14 has opening 60 that is located in the patient's stomach 50.
- opening 60 functions as a suction intake that effects aspiration of food contents from the stomach.
- the aspirated food contents travel through nasogastric tube section 14 and into a container (not shown) in suction apparatus 21.
- opening 60 functions as an output for this food.
- oropharyngeal tube section 16 is inserted through the patient's mouth 52 and has a length that is relatively shorter than the length of nasogastric tube section 14. Oropharyngeal tube section 16 has suction intake 70. The length of oropharyngeal tube section 16 is such that suction intake 70 is positioned in hypopharynx region 40.
- suction intake 70 of oropharyngeal tube section 16 sucks in microaspirations and regurgitated material located in hypopharynx region 40 thereby removing such microaspirations and regurgitated material from hypopharynx region 40.
- suction intake 70 substantially reduces the risk of infection due to aspirations from the stomach 50 moving into the mouth 52.
- nasogastric tube section 14 and oropharyngeal tube section 16 are fabricated from commercially available flexible, soft plastic material, similar to the material used to fabricate conventional endotracheal tubes.
- the internal diameter of such commercial plastic tubing is between about 5mm and 10mm.
- Medical apparatus 100 comprises tube structure 102.
- Tube structure 102 comprises nasogastric tube section 104, nasopharyngeal tube section 106, and tube section 108.
- Nasogastric tube section 104 and nasopharyngeal tube section 106 are joined together at tube section 108 so as to form a generally "Y" shaped configuration.
- Both nasogastric tube section 104 and nasopharyngeal tube section 106 are inserted through the patient's nose 30.
- Tube section 108 is configured to be connected to tube section 110.
- Tube section 110 is configured to be connected to an external apparatus (not shown).
- such an external apparatus can be a suction apparatus such as suction apparatus 21 described in the foregoing description.
- a suction apparatus produces suction within tube structure 102.
- tube section 108 and tube section 110 have the same structure and perform the same functions as tube section 18 and tube section 20, respectively, of medical apparatus 10 described in the foregoing description.
- Nasogastric tube section 104 has opening 160.
- Nasogastric tube section 104 has a length that ensures that opening 160 is positioned in the patient's stomach 50.
- Nasogastric tube section 104 performs the same function as nasogastric tube section 14 (see FIG. 1 ).
- Nasopharyngeal tube section 106 has suction intake 170.
- Nasopharyngeal tube section 106 has a predetermined that is less than the length of nasogastric tube section 104. This predetermined length of nasopharyngeal tube section 106 allows suction intake 170 to be positioned in the patient's hypopharynx region 40. Suction intake 170 performs the same function as suction intake 70 of oropharyngeal tube section 16 shown in FIG. 1 . When the aforementioned suction apparatus is connected to tube section 110, suction intake 170 sucks in microaspirations and regurgitated material located in hypopharynx region 40 thereby removing such microaspirations and regurgitated material in hypopharynx region 40. Thus, suction intake 70 substantially reduces the risk of infection due to aspirations from stomach 50 moving into mouth 52.
- Medical apparatus 300 comprises tube structure 302 which is configured to be inserted through the patient's nose 30.
- Tube structure 302 comprises an outer tube 304 and an inner conduit 306.
- inner conduit 306 is positioned within outer tube 304.
- inner conduit 306 is a tube having an outer surface 308.
- outer surface 308 is attached to inner surface 310 of outer tube 304.
- inner conduit 306 is integrally formed with outer tube 304 during the manufacture of tube structure 302.
- Outer tube 304 section includes openings 320 and 322.
- the length of outer tube 304 is such that opening 322 is located in the patient's stomach 50. Opening 322 serves the same purpose as opening 60 (see FIG. 1 ) and opening 160 (see FIG. 2 ). As shown in FIGS. 3A and 3C , the length of inner conduit 306 is less than the length of outer tube 304.
- Tube structure 302 has a predetermined length that allows opening 320 to be located in the patient's hypopharynx region 40.
- Inner conduit 306 includes opening 330 that is aligned and in communication with opening 320 in outer tube 306. Opening 330 functions as a suction intake port or opening. Referring to FIG. 3A , tube structure 302 has end 332. Outer tube 304 has opening 334. Inner conduit 306 has opening 336.
- Medical apparatus 300 includes tube section 340 that is joined to end 332 of tube structure 302.
- Tube section 340 serves the same purpose as tube section 20 (see FIG. 1 ) and is configured to be connected to an external apparatus such as suction apparatus 21 described in the foregoing description.
- suction apparatus 21 described in the foregoing description.
- suction apparatus 21 When a suction apparatus is connected to tube section 340, suction is produced within tube structure 302 which results in microaspirations and regurgitated material located in hypopharynx region 40 to be sucked into opening 330.
- microaspirations and regurgitated material in hypopharynx region 40 are removed thereby substantially reducing the risk of infection due to aspirations from stomach 50 moving into mouth 52.
- the medical apparatus as described in the foregoing description and shown in FIGS. 3A-3D provide many important advantages.
- One such advantage is that the suction intake in hypopharynx region 40 captures microaspirations as well as relatively larger regurgitated material and particles that enter the hypopharynx. This feature reduces the risk of infection due to aspirations from the stomach moving into the mouth.
- This medical apparatus can be used during surgery for patients with any of the following conditions:
- This medical apparatus also can be used in the ICU (Intensive Care Unit) for patients in any of the following situations:
- medical apparatus 400 shown in FIGS. 4-7 , is an improved laryngeal mask configured to effect suctioning the hypopharynx region.
- Medical apparatus 400 comprises laryngeal mask 402 and suction tube 404.
- laryngeal mask 402 is configured as the laryngeal mask described in U.S. Patent No. 4,509,514 .
- Laryngeal mask 402 has a front side 406 and rear side 408.
- Suction tube 404 is located at the rear side 408 of laryngeal mask 402.
- suction tube 404 is integrally formed with laryngeal mask 402 during the manufacture of medical apparatus 400.
- suction tube 404 is a separate component that is attached to the rear side 408 of laryngeal mask 400.
- any suitable technique can be used to attach suction tube 404 to rear side 408 of laryngeal mask 400.
- Laryngeal mask 402 comprises flexible breathing tube 410 and mask portion 412 with an inflatable tubular ring 414. Inflatable tubular ring 414 has distal end 415.
- Suction tube 404 is preferably fabricated from soft plastics material, similar to that conventionally used for endotrachael tubes.
- Suction tube 404 comprises a rear side that is attached to rear side 408 of laryngeal mask 402.
- Suction tube 404 includes front side 422.
- External suction tube 404 further includes tube sections 430 and 440 that are joined together at middle tube section 450. Sections 430 and 440 are attached to the rear side of mask portion 412. Suction tube 404 further includes tube section 460 that is connected to middle tube section 450 and extends along the rear side of flexible breathing tube 410. Each tube section 430 and 440 has a plurality of suction ports 470 formed on front side 422. Suction tube 404 has end portion 480 that defines opening 482. End portion 480 is configured to be connected to a suction hose (not shown) that is connected to an external suction apparatus (not shown) such as suction apparatus 21 described in the foregoing description.
- medical apparatus 400 when in use, medical apparatus 400 is inserted into the patient's mouth 500 and down through the patient's throat 502 past the epiglottis 504 until mask portion 412 comes to rest with distal end 415 of inflatable ring 414 in the base 506 of throat 502, lying against the upper end of the normally closed esophagus 508.
- Suction ports 470 face the back of throat 502.
- Inflatable ring 414 is then inflated as shown to seal around inlet 514 to larynx 516. The patient's airway is thus secure and unobstructed and flexible tube 410 is then connected directly to the conventional anesthetic circuit hosing for either positive pressure or spontaneous breathing.
- End portion 480 of suction tube 404 is then connected to a suction apparatus to allow suction ports 470 to suck oropharyngeal secretions from the mouth and the back of the throat 502.
- Such secretions are made not only from the patient's stomach, but also from the salivary glands in the mouth.
- Medical apparatus 400 provides a laryngeal mask with increased versatility which can be used in many situations including patients with the following conditions:
- medical apparatus 700 in accordance with another embodiment of the invention.
- medical apparatus 700 is configured for use in the situation wherein continuous high-level suctioning is necessary.
- medical apparatus 700 prevents collapse of the hypopharynx and stomach walls while continuous suctioning is occurring and also prevents damage to stomach and hypopharynx tissues.
- Medical apparatus 700 comprises outer tube 702 which is configured to be inserted either through a patient's mouth or patient's nose. Tube 702 has a distal end 703 and a predetermined length that allows end 703 to be positioned in a patient's stomach.
- Tube 702 comprises four separate conduits 704, 706, 708 and 710 which are not in communication with each other.
- Conduits 704 and 708 are suction conduits.
- Conduits 706 and 710 are air conduits.
- Tube 702 includes suction intakes or openings 712 that are in communication with suction conduit 704.
- Suction intakes 712 are located a predetermined location along the length of tube 702 that correlates to the hypopharynx region of a patient when tube 702 is inserted in a patient.
- Tube 702 includes an opening or vent 714.
- Air conduit 706 is in communication with opening 714. When pressurized air is provided to air conduit 706, such air is vented through opening 714. The purpose of this configuration is explained in the ensuing discussion.
- Tube 702 also includes suction intakes or openings 718.
- Suction conduit 708 is in communication with suction intakes 718. When suction is applied to suction conduit 708, stomach contents are sucked through suction intakes 718 and up through suction conduit 708 and into an external suction apparatus as will be explained in the ensuing description.
- air conduit 710 has opening or vent 720. When pressurized air is supplied to air conduit 710, the pressurized air vents through opening 720 and into the patient's stomach.
- medical apparatus 700 further comprises tube sections 730, 732, 734 and 736.
- Tube section 730 is joined to and in communication with conduit 704.
- Tube section 732 is joined to and in communication with conduit 706.
- Tube section 734 is joined to and in communication with conduit 708.
- Tube section 736 is joined to and in communication with conduit 710.
- Tube section 730 is configured to be connected to suction apparatus 744.
- Tube section 732 is configured to be connected to pressurized air source 742.
- Tube section 734 is configured to be connected to suction apparatus 734.
- Tube section 736 is configured to be connected to pressurized air source 738.
- Suction apparatuses 740 and 744 are separate apparatuses.
- one suction apparatus can provide high-level suction while the other suction apparatus can provide low-level suction.
- both suction apparatuses provide low-level suction.
- both suction apparatuses provide high-level suction.
- Pressurized air sources 738 and 742 are separate air sources and each has an activated state and an inactivated state. Thus, both pressurized air sources can be activated, inactivated, or one pressurized source activated and the other pressurized air source inactivated.
- suction apparatuses 744 and 740 When tube 702 is inserted into a patient and high-level suction of the stomach and hypopharynx is necessary, suction apparatuses 744 and 740 produce suction within suction conduits 704 and 708, respectively. Stomach contents are sucked into suction intakes 718, and microaspirations and regurgitated material in the hypopharynx region are sucked into suction intakes 712. All material sucked into suction intakes 712 and 718 are sucked through conduits 704 and 708, respectively, and into baskets or other containers inside suction apparatuses 744 and 740, respectively.
- pressurized air sources 742 and 738 provide air to air conduits 706 and 710, respectively.
- the pressurized air supplied to air conduit 706 is vented through opening 714 and the pressurized air provided to air conduit 710 is vented through opening 720.
- the pressurized air vented through opening 714 keeps suction intakes 712 away from hypopharynx tissue
- the pressurized air vented through opening 720 keeps suction intakes 718 away from stomach tissue.
- pressurized air source 738 can be inactivated while pressurized air source 742 remains activated.
- pressurized air source 742 can be inactivated while pressurized air source 738 remains activated.
- each conduit 704, 706, 708 and 710 is configured as a tube. In another embodiment, conduits 704, 706, 708 and 710 are integrally formed with tube 702 during the manufacturing process.
- tube 702 and conduits 704, 706, 708 and 710 are fabricated from the same materials used to fabricate the tubes of the medical apparatuses described in the foregoing description.
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Claims (9)
- Dispositif médical (300, 700) comprenant une structure de sonde flexible (302, 702) destinée à être insérée par la bouche (52) ou le nez (30) d'un patient, la structure de sonde flexible (302, 702) comportant une première extrémité définissant une première ouverture et une deuxième extrémité distale qui définit un premier orifice d'aspiration (322, 718), caractérisé en ce que la sonde flexible (302, 702) comporte un orifice intermédiaire d'aspiration (330, 712) qui est situé entre la première ouverture et le premier orifice d'aspiration (322, 718), la structure de sonde flexible (302,- 702) comportant une longueur suffisante pour permettre (i) à la première extrémité de s'étendre à partir de la bouche (52) ou du nez (30) du patient, (ii) au premier orifice d'aspiration (322, 718) d'être positionné dans l'estomac (50) d'un patient, et (iii) à l'orifice intermédiaire d'aspiration (330, 712) d'être positionné dans la région de l'hypopharynx (40) d'un patient.
- Dispositif médical selon la revendication 1, où la première extrémité de la sonde flexible est conçue de manière à être connectée à un dispositif pour produire une aspiration à l'intérieur de la sonde flexible.
- Dispositif médical selon la revendication 1, où la structure de sonde flexible (302, 702) comprend en outre un conduit intérieur (306, 704) qui comprend une ouverture qui est alignée et en communication avec une ouverture (320) dans un tube extérieur (304) de la structure de sonde flexible (302, 702) qui fait fonction d'orifice intermédiaire d'aspiration (330, 712).
- Dispositif médical selon la revendication 3 incluant en outre un moyen pour connecter un dispositif produisant une aspiration à la structure de sonde flexible (302, 702) pour produire une aspiration à l'intérieur du conduit intérieur (306, 704) et entraîner l'aspiration dans l'orifice d'aspiration (330, 712) de micro-aspirations et de matière régurgitée dans la région de l'hypopharynx (40).
- Dispositif médical selon la revendication 3, où la structure de sonde flexible (702) comprend en outre une ouverture (714) à proximité de l'orifice intermédiaire d'aspiration (712) et où le dispositif médical comprend en outre un conduit intérieur (706) disposé à l'intérieur de la sonde flexible (702), le conduit intérieur (706) comprenant une première extrémité présentant une ouverture qui est adjacente à l'ouverture de la première extrémité de la structure de sonde flexible (702) et une seconde extrémité distale présentant une ouverture en communication avec l'ouverture (714), le dispositif médical comprenant en outre :un conduit intérieur (710) disposé à l'intérieur de la structure de sonde flexible (702), le conduit intérieur (710) comprenant une première extrémité présentant une ouverture adjacente à l'ouverture dans la première extrémité de la structure de sonde flexible (702) et une seconde extrémité distale présentant une ouverture (720) à proximité du premier orifice d'aspiration (718) ;un moyen pour connecter l'ouverture de la première extrémité du conduit intérieur (706) à une source d'air sous pression (742) pour fournir de l'air sous pression au second conduit intérieur (706) de manière à entraîner l'évacuation de l'air sous pression par l'ouverture (714) afin d'empêcher l'orifice d'aspiration (712) d'endommager des tissus dans la région de l'hypopharynx (40) d'un patient ;un moyen pour connecter l'ouverture de la première extrémité du conduit intérieur (710) à une source d'air sous pression (738) pour fournir de l'air sous pression au conduit intérieur (710) de manière à entraîner l'évacuation de l'air sous pression par l'ouverture (720) afin d'empêcher l'orifice d'aspiration (718) d'endommager des tissus dans l'estomac (50) d'un patient.
- Dispositif médical comprenant
un masque laryngé comportant une face avant et une face arrière où la face arrière fait face à l'arrière de la gorge d'un patient lorsque le masque laryngé est utilisé dans un patient ; et
une sonde flexible d'aspiration (404) reliée à et s'étendant le long de la face arrière du masque laryngé (400),
où la sonde flexible d'aspiration (404) comporte une pluralité d'orifices d'aspiration (470) pour l'aspiration de sécrétions oropharyngées dans la bouche et la gorge du patient, la sonde flexible d'aspiration (404) comportant une ouverture (482) qui est conçue pour être connectée à un dispositif (740, 744) pour produire une aspiration à l'intérieur de la sonde flexible d'aspiration (404). - Dispositif médical selon la revendication 6, où la sonde flexible d'aspiration comprend une section à sonde unique (460) et des sections présentant une paire de sondes (430, 440) reliées à la section à sonde unique (460), la section à sonde unique (460) définissant l'ouverture (482) qui est conçue pour être connectée au dispositif pour produire une aspiration, la section à sonde unique (460) et les sections présentant une paire de sondes (430, 440) étant agencées de manière à avoir une forme générale en « Y ».
- Dispositif médical selon la revendication 7, où les orifices d'aspiration (470) sont situés dans chaque section de sonde de la paire de sections de sondes (430, 440).
- Dispositif médical selon la revendication 8, où le masque laryngé comprend une partie masque et où les sections présentant une paire de sondes sont reliées à la face arrière de la partie masque.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US66558505P | 2005-03-25 | 2005-03-25 | |
PCT/US2006/010623 WO2006104855A1 (fr) | 2005-03-25 | 2006-03-23 | Dispositif medical comportant une fonction d'aspiration de l'hypopharynx |
Publications (3)
Publication Number | Publication Date |
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EP1861154A1 EP1861154A1 (fr) | 2007-12-05 |
EP1861154A4 EP1861154A4 (fr) | 2011-03-23 |
EP1861154B1 true EP1861154B1 (fr) | 2016-11-16 |
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ID=37053694
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EP06739425.4A Active EP1861154B1 (fr) | 2005-03-25 | 2006-03-23 | Dispositif medical comportant une fonction d'aspiration de l'hypopharynx |
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Country | Link |
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US (2) | US8105316B2 (fr) |
EP (1) | EP1861154B1 (fr) |
CN (2) | CN101146567B (fr) |
AU (1) | AU2006229933B2 (fr) |
BR (1) | BRPI0609649A2 (fr) |
ES (1) | ES2611771T3 (fr) |
HK (2) | HK1118489A1 (fr) |
WO (1) | WO2006104855A1 (fr) |
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- 2006-03-23 CN CN2006800094572A patent/CN101146567B/zh active Active
- 2006-03-23 WO PCT/US2006/010623 patent/WO2006104855A1/fr active Application Filing
- 2006-03-23 ES ES06739425.4T patent/ES2611771T3/es active Active
- 2006-03-23 AU AU2006229933A patent/AU2006229933B2/en active Active
- 2006-03-23 BR BRPI0609649-2A patent/BRPI0609649A2/pt not_active Application Discontinuation
- 2006-03-23 CN CN2010101570841A patent/CN101856518B/zh active Active
- 2006-03-23 US US11/817,606 patent/US8105316B2/en active Active
-
2008
- 2008-09-01 HK HK08109693.3A patent/HK1118489A1/xx unknown
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2012
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Also Published As
Publication number | Publication date |
---|---|
CN101146567B (zh) | 2010-06-16 |
CN101856518B (zh) | 2012-08-22 |
AU2006229933B2 (en) | 2012-01-19 |
BRPI0609649A2 (pt) | 2010-04-20 |
WO2006104855A1 (fr) | 2006-10-05 |
AU2006229933A1 (en) | 2006-10-05 |
US8105316B2 (en) | 2012-01-31 |
CN101856518A (zh) | 2010-10-13 |
HK1118489A1 (en) | 2009-02-13 |
US9687622B2 (en) | 2017-06-27 |
EP1861154A4 (fr) | 2011-03-23 |
ES2611771T3 (es) | 2017-05-10 |
US20120123393A1 (en) | 2012-05-17 |
HK1147451A1 (en) | 2011-08-12 |
EP1861154A1 (fr) | 2007-12-05 |
CN101146567A (zh) | 2008-03-19 |
US20080071249A1 (en) | 2008-03-20 |
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